Sleigh-knee



No. 609,470. Patented Aug. 23, 189:8.

C. J. SHAW.

SLEIGH KNEE.

(Application led June 23, 1897.)

No Model.)

rares innen.

ArrnNr SLElGH-KNEE.

SPECIFICATION forming part of Letters Patent No. 609,470, dated August 23, 1898. Application filed June 23, 1897. `Serial No. 641,907. (No model.)

improvements in sleigh-knees; and it con-` sists in the novelcombination of simple parts, as will be hereinafter fully described.

One object of the invention is to produce a knee that will have a slight oscillatory movement upon the sleigh-runner.

A further object of the invention is to pro-- vide means whereby the runners may be readily attached or detached from the sleighknee and also to provide a roller-bearin g for the knee.

Other objects and advantages of my invention will become apparent in the course of the following description, and the points of novelty will be particularly set forth in the claims.

I am enabled to accomplish the objects of my invention by the simple means illustrated in the accompanying drawings, in Which Figure 1 represents a perspective View of my improved sleigh-knee with the upper portion or bolster-plate removed. Fig. 2 is a vertical longitudinal sectional view through the bolster-plate, knee, runner, and saddle; and Fig. 3 is a perspective View of the bolster-plate. Fig. 4. represents a central lon gitudinal section through the saddle.

Referring to the drawings, theA numeral 1 indicates the bolster-plate or top portion, which is provided with laterally-extending ears 2, provided with perforations for the passage of bolts, by which means it is iirmly secured to the transverse beam of the sleigh. The said plate is provided with convex side iianges,as indicated by the numeral 3,straight end iiangesi, and the conveXed under bearing-surfaces 5 on either side of the depending arm 6. Said arm `6 extends centrally some distance into vthe saddle, the purpose of which will presently become apparent.

The numeral 7 indicates the saddle, which is provided with longitudinal extensions 8,

provided with perforations for the passage of the bolts to secure the saddle to the sleighrunner;V The top of the saddle is concaved to conform to the shape of the under side of the bolster-plate. Formed upon the inner side walls of `the saddle 7 are the shoulders 12, the ends of which are provided with circular depressions 13, forming seats for the rollers 9. saddle and positioned in the depressions 13 before the bolster-plate is secured to the saddle. It will be seen that the rollers will form a bearing for the bolster-plate upon the saddle.

The numeral 10 indicates an opening in the Yside of the saddle, through which the pin 11 is inserted and passed through the lower portion of the depending arm 6, and when in position in the arm the said pin prevents the saddle and bolster-plate from becoming separated by reason of its contact with the circular shoulders 12, formed on the inner side walls of the saddle. After the pin is inserted in the opening 10 the said opening is closed by the screw-plug 13, which is provided', preferably, with a squared recess in its outer end for the reception of the squared portion of the wrench or other implement by which the plug is unscrewed and taken out when it is desired to remove the pin and separate the bolster-plate and saddle.

It will be observed from the foregoing description that the saddle will have an oscillatory movement, the movement thereof being limited by the rollers 9 coming in contact with the sides of the depending arm 6 and the upper end edges of the saddle coming in contact with the end anges on the bolsterplate. It will also be observed that the knee is united to the bolster-plate without the use of nuts or bolts, and the same may be readily attached or detached whenever desired.

I do not desire to be understood as limiting myself to the precise form shown in the drawings, and many modifications involving mechanical skill will suggest themselves and be made Without departing from the spirit of the invention. i

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a sled, the combination with the saddle attached to the sled-runner, of the bol-s These rollers are inserted in thel IOC) ster-plate having the central depending arm, the pivot-pin extending through said arm, and side walls of the saddle, and the rollers interposed between the bolster-plate and saddle; substantially as described.

2. In a sled, the combination with the saddle, secured to the sled-runner, the shoulders on the inner side walls thereof, having depressions at each end, of the bolster-plate, the rollers interposed between the bolster and saddle and resting in the depressions in the shoulder on the saddle; substantially as described.

3. In a sled, the combination with the bolster-plate having the Central depending arm, convex under surface and provided with conveX side flanges and straight end llanges, the saddle, to which said bolster-plate is pivotally secured, secured to the sled-runners and having the concave top to correspond to the 2o under curved surface of the bolster-plate, the shoulders on the inner side walls of the saddle, the rollers carried by said shoulders and upon which the bolster-plate bears, the pivotal or oscillatory movement between the saddle and bolster-plate beinglimited in one direction by the end llanges on the plate and in the other direction by contact between the roller and depending arm; substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES .r. SHAW.

Witnesses:

WINNIE ToWNsnND, SILAs L. WHEELooK. 

